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<title>Edit Transitions In Value Lifeline [Enterprise Architect User Guide]</title>

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                  <p class="p_Heading1"><span class="f_Heading1">Edit Transitions In Value Lifeline</span></p>



  
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                <p class="p_SubHeadingL1"><span class="f_SubHeadingL1">Add Transitions</span></p>
<p class="p_BodyText"><span class="f_BodyText">After you have added states to the Value Lifeline element, you can add transitions via the diagram. To do this, follow the steps below:</span></p>
<ol style="text-indent: 0px; margin-left: 48px; list-style-position: outside;">
<li value=1><span class="f_NumberedList">Move the cursor above the transition line. The cursor changes form (</span><img src="timelinecursor4.png" width="19" height="21" border="0" alt="Timelinecursor4"><span class="f_NumberedList">).</span></li>
<li value=2><span class="f_NumberedList">Click the mouse button. The </span><span class="f_UIControl">New Transition Event</span><span class="f_NumberedList"> dialog displays.</span><br>
<span class="f_NumberedList">&nbsp;</span><br>
<img src="new%20transition%20event%20dialog.png" width="312" height="216" border="0" alt="New Transition Event Dialog"><br>
<span class="f_NumberedList">&nbsp;</span></li>
<li value=3><span class="f_NumberedList">In the </span><span class="f_MenuKeyField">Transition To</span><span class="f_NumberedList"> field, click on the drop-down arrow and select a state from the list of available states; this displays on the Lifeline element within the transition box. The remaining fields on the dialog are optional.</span></li>
<li value=4><span class="f_NumberedList">In the </span><span class="f_MenuKeyField">Event </span><span class="f_NumberedList">field, type the name of the event that the transition represents; this displays on the Lifeline element just below and at the start of the transition line.</span></li>
<li value=5><span class="f_NumberedList">In the </span><span class="f_MenuKeyField">Duration Constraint</span><span class="f_NumberedList"> field, type any constraint on the duration of the transition; this displays on the Lifeline element, along the top of the element over the transition.</span></li>
<li value=6><span class="f_NumberedList">In the </span><span class="f_MenuKeyField">Time Constraint</span><span class="f_NumberedList"> field, type any constraint on the start of the transition. This displays on the Lifeline element at the start of the transition, just after the Event name.</span></li>
<li value=7><span class="f_NumberedList">Click on the </span><span class="f_MenuKeyField">OK</span><span class="f_NumberedList"> button to create the new transition.</span></li>
</ol>
<p class="p_SubHeadingL1"><span class="f_SubHeadingL1">Edit Transitions</span></p>
<p class="p_BodyText"><span class="f_BodyText">To edit a transition, follow the steps below:</span></p>
<ol style="text-indent: 0px; margin-left: 48px; list-style-position: outside;">
<li value=1><span class="f_NumberedList">Click on the state name in the transition. Alternatively, right-click on the state name to display the context menu, and select the </span><span class="f_NumberedList" style="font-weight: bold;">Edit</span><span class="f_NumberedList"> menu option.</span><br>
<span class="f_NumberedList">&nbsp;</span><br>
<span class="f_NumberedList">The </span><span class="f_UIControl">Edit Transition</span><span class="f_NumberedList"> dialog displays; this is the same as the </span><span class="f_UIControl">New Transition Event</span><span class="f_NumberedList"> dialog, except that the </span><span class="f_MenuKeyField">At Time</span><span class="f_NumberedList"> field is enabled.</span></li>
<li value=2><span class="f_NumberedList">If necessary, overtype the </span><span class="f_NumberedList" style="font-weight: bold;">At Time</span><span class="f_NumberedList"> field to define a different start point.</span></li>
</ol>
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<td valign="bottom" width="955" bgcolor="#efeff7" style="width:955px; background-color:#efeff7;"><p class="p_TiporNote" style="border-top: none; border-right: none; border-left: none;"><span class="f_TiporNote">Note:</span></p>
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<td width="955" bgcolor="#f7f7ff" style="width:955px; background-color:#f7f7ff;"><p class="p_TiporNoteText"><span class="f_TiporNoteText">You cannot change the </span><span class="f_MenuKeyField">At Time</span><span class="f_TiporNoteText"> field for the first state in the timeline; this is always </span><span class="f_MenuKeyField">0</span><span class="f_TiporNoteText">.</span></p>
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<ol style="text-indent: 0px; margin-left: 48px; list-style-position: outside;">
<li value=3><span class="f_NumberedList">Edit the remaining fields as necessary.</span></li>
<li value=4><span class="f_NumberedList">Click on the </span><span class="f_MenuKeyField">OK</span><span class="f_NumberedList"> button to save the changes.</span></li>
</ol>
<p class="p_SubHeadingL1"><span class="f_SubHeadingL1">Change the Transition Time</span></p>
<p class="p_BodyText"><span class="f_BodyText">To change the start or end time of a transition, click on the start or end point of the transition and drag it to the new position. While on the line, the cursor shape changes to the horizontal movement cursor (<img src="leftrightcursor.png" width="24" height="16" border="0" alt="Leftrightcursor">).</span></p>
<p class="p_SubHeadingL1"><span class="f_SubHeadingL1">Delete Transitions</span></p>
<p class="p_BodyText"><span class="f_BodyText">To delete a transition, press and hold </span><span class="f_MenuKeyField">[Ctrl]</span><span class="f_BodyText"> and click on the transition state name. While you hold </span><span class="f_MenuKeyField">[Ctrl]</span><span class="f_BodyText"> on the transition state name, the cursor changes form (</span><span class="f_BodyText" style="font-family: 'Wingdings 3';">7</span><span class="f_BodyText">).</span></p>
<p class="p_BodyText"><span class="f_BodyText">Alternatively, right-click on the state name to display the context menu, and select the </span><span class="f_MenuKeyField">Delete</span><span class="f_BodyText"> menu option.</span></p>




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